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Chemistry

Answered

What is the mass number of sodium

What is the mass number of sodium class=

Answer :

Today at 2:46 PM

Answer:

Explanation:

Sodium mass number 23, 11 electrons

Magnesium: neutrons = 12

aluminum : atomic number = 13

phosporus : protons = 15

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Today at 2:46 PM

Answer:

23

Explanation:

You need to add protons and neutrons to get mass

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